notes/OJ notes/pages/Leetcode Non-Overlapping-Intervals.md

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2022-09-03 15:41:36 +08:00
# Leetcode Non-Overlapping-Intervals
2022-09-03 15:34
> ##### Algorithms:
>
> #algorithm
>
> ##### Data structures:
>
> #DS
>
> ##### Difficulty:
>
> #coding_problem #difficulty-
>
> ##### Additional tags:
>
> #<platforms-like-leetcode> #<list-to-be-added>
>
> ##### Revisions:
>
> N/A
##### Links:
- [Link to problem](https://leetcode.com/problems/non-overlapping-intervals/)
---
### Problem
Given an array of intervals `intervals` where `intervals[i] = [starti, endi]`, return _the minimum number of intervals you need to remove to make the rest of the intervals non-overlapping_.
#### Examples
**Example 1:**
**Input:** intervals = [[1,2],[2,3],[3,4],[1,3]]
**Output:** 1
**Explanation:** [1,3] can be removed and the rest of the intervals are non-overlapping.
**Example 2:**
**Input:** intervals = [[1,2],[1,2],[1,2]]
**Output:** 2
**Explanation:** You need to remove two [1,2] to make the rest of the intervals non-overlapping.
**Example 3:**
**Input:** intervals = [[1,2],[2,3]]
**Output:** 0
**Explanation:** You don't need to remove any of the intervals since they're already non-overlapping.
#### Constraints
- `1 <= intervals.length <= 105`
- `intervals[i].length == 2`
- `-5 * 104 <= starti < endi <= 5 * 104`
### Thoughts
> [!summary]
> This is a #template_remove_me
### Solution